Rekensommen met eraf tot 100

Erafsommen
1.
10
–
0
=
2.
35
–
10
=
3.
30
–
15
=
4.
60
–
5
=
5.
30
–
15
=
6.
70
–
20
=
7.
50
–
15
=
8.
75
–
20
=
9.
60
–
20
=
10.
50
–
30
=
11.
100
–
50
=
12.
65
–
65
=
13.
15
–
10
=
14.
25
–
25
=
15.
45
–
10
=
16.
5
–
5
=
17.
20
–
0
=
18.
60
–
15
=
19.
55
–
45
=
20.
55
–
10
=
21.
70
–
25
=
22.
45
–
5
=
23.
55
–
10
=
24.
90
–
15
=
25.
35
–
15
=
26.
65
–
0
=
27.
70
–
45
=
28.
20
–
10
=
29.
90
–
65
=
30.
75
–
65
=
31.
100
–
100
=
32.
35
–
30
=
33.
50
–
40
=
34.
45
–
30
=
35.
80
–
80
=
36.
95
–
50
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
10
–
0
=
10
2.
35
–
10
=
25
3.
30
–
15
=
15
4.
60
–
5
=
55
5.
30
–
15
=
15
6.
70
–
20
=
50
7.
50
–
15
=
35
8.
75
–
20
=
55
9.
60
–
20
=
40
10.
50
–
30
=
20
11.
100
–
50
=
50
12.
65
–
65
=
0
13.
15
–
10
=
5
14.
25
–
25
=
0
15.
45
–
10
=
35
16.
5
–
5
=
0
17.
20
–
0
=
20
18.
60
–
15
=
45
19.
55
–
45
=
10
20.
55
–
10
=
45
21.
70
–
25
=
45
22.
45
–
5
=
40
23.
55
–
10
=
45
24.
90
–
15
=
75
25.
35
–
15
=
20
26.
65
–
0
=
65
27.
70
–
45
=
25
28.
20
–
10
=
10
29.
90
–
65
=
25
30.
75
–
65
=
10
31.
100
–
100
=
0
32.
35
–
30
=
5
33.
50
–
40
=
10
34.
45
–
30
=
15
35.
80
–
80
=
0
36.
95
–
50
=
45
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen